Stove attachment



B. LUCAS.

STOVE ATTACHMENT.

APPLICATION FILED IuLYa, 1919.

1,339,268. Patented May 4,1920.

WITNESS: f IN VEN TOR.

A TT ORNE Y.

lLAIIl'IE LUCAS, OF HARLOWTON, MONTANA.

STOVE ATTACHMENT.

Specification of Letters Patent.

Patented May 4, 1920.

Application led July 3, 1919. Serial No. 308,575.

f the fan casing beneath the grate of the stove which conveys a draft toa point where it insures a starting of the fire.

Another object of importance, resides in the provision of a sleeve which surrounds the pipe to protect the latter from the ashes or the like, the sleeve being perforated to permit the escape of air at points in its length.

The nature and advantages of the inven f tion will be better understood when the following detailed description is read in connection with the accompanying drawing, the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawings forming part of this specification, like numerals of reference indicate similar parts in the several views, wherein:

Figure 1 is a sectional view through a stove showing the invention positioned therein.

Fig. 2 is a side elevation of the fan showing thecasing in section.

Fig. 3 is a transverse section through the pipe and its protector.

The device forming the subject matter of my invention, embodies a cylindrical casing which may be constructed from any suitable material and of any desired size, and

provided with attaching lugs 11 through which suitable fastening elements are passedV for securing the casing to one side of the in terior of the stove. A shaft 12 is disposed centrally of the casing 1.0 and ournaled for rotation therein, the shaft carrying a fan 13 for creating the desired draft to start the fire. A crank handle 14.- is utilized to operate the fan, while a relatively small gear 15 carried by the fan meshes with a relatively large gear 16, the latter in turn meshing with the internal gear 17. Manifestly, the arrangement of parts is such that the fan can be operated with considerable speed for the purpose mentioned. The internal gear 17 is rotated through the instrumentality of the handle 14, and rotatesthe gear 16, the latter mentioned gear being relatively large as compared with the gear 15 on the fan shaft which is Vrotated with considerable speed. Plate 15 forms one end wall of the casing, the plate 15 having a diameter less than the internal diameter of the casing to provide a circumferential passage by the intervening space between the periphery of the plate 15 and the walls' of the casing 10. This passage indicated at 16 receives the handle 14, the latter operating within the passage when the fan is rotated. In addition to this fact, the passage 16 provides for the admittance of air into the casing.

Leading from the casing 10 and communicating therewith, is a perforated pipe 18 which extends beneath the grate of the stove and obviously conveys the draft from the casing 10 to a point beneath the grate where it insures quick starting of the re. With a view of protecting the said pipe from the accumulation of ashes thereabout and for preventing ashes gaining access to the interior of said pipe, I employ a sleeve 20 of an appropriate length and of a diameter to provide a space between the pipe and said sleeve. The sleeve is provided with openings or perforations 22 which permit of the escape of the draft at appropriate points throughout its length. The device in its en tirety, is of a size to allow it to be conveniently disposed or arranged within the stove in an out of the way position.

While I have shown and described what I consider the. preferred embodiment of the invention, I desire to have it understood that I do not limit myself in this connection, and that such changes may be resorted to when. desired as fall within the scope of what is claimed.

What I claim is A stove attachment adapted for use in conjunction with a perforated conduit arranged beneath the grate of the stove, said attachment comprising a fan casing arranged within the stove and communicating with said conduit, a fan shaft mounted for rotation within the casing, a fan fixed upon said shaft, an internal gear mounted for rotation within the casing, a relatively small gear mounted for rotation and mesh the casing, and having a diameter smaller ing With said internal gear, a handle Ffor roV` Vv-'than th'mdiameter of the casing, to provide tating said internal gear, a pinion xed upon an annular passage for the admittance of 10 the fan shaft and meshing with said small air to the Casing, and said handle operating gear, whereby said shaft is rotated' With Within'the passage as described.

considerable speed upon rotation of the in- In testimony whereof I aiX my signature. ternal gear, a plate arranged at one end of BLAINELUCASL 

